Union



sept.3,1935. Q QSNELL Em' 2,013,293

v UNION Filed Jan. 3l, 1935 I 'uNiTEo STATES tween the sections, and a quick connection or Patented Sept. 3, 1935 PATENJ` oFFlcE UNION Owens C.

sneu and charles' E. Giften, Houston, Tex.

Application Januay 31, 1935, serial No. 4,251

` 4 s claims. (01;.285-128) This invention relates to a union.

An object of the invention is to provide av union for connecting sectionsv of pipe and the like whereby a leak-proof joint maybe formed bedisconnection may be made.

Another object of the invention is to provide a union of the character described whereby the connected parts may be' drawn very closely together, with little effort on the part of the workmen, and a very tight joint thus formed between the connected parts.

Another object of the invention is to provide in a device of the character described, a novel type of clamp ring for drawing the connected parts together, said ring being provided with impact faces whereby an implement such as a ham- `v mer may be used for tightening up or releasing the clamp ring.

YWith the above and other objects in view, the invention has particularrelation to certain novel features of construction, operation, and arrangement of parts, an example of which is given in this specification and illustrated in the accompanying drawing, wherein,

Figure 1 shows a longitudinal sectional view' of the union taken on the line I-,I of Fig. 2, and

Figure 2 shows a cross-sectional View taken on the line 2-2 of Figure 1.

Referring now more particularly to the drawing wherein like numerals of reference designate similar parts in eaclix of the figures, the numerals I and 2 refer respectively to two coupling members to which the pipe sections 3 and 4, or other parts to be united, are connected.

The facing lends Loi" said coupling members have coinciding grooves 5 and 6 in whichl the seal ring is seated toform leak-proof joints.

As will e noted, the outer wall of the groove 5 is approximately parallel with the axis of lthe sections I, 2, land the inner wall converges ini ward1y, and the end of the seal ring 'I tted into the'groove 5 is correspondingly shaped so that when the seal ring isv driven into thegroove 5 it will seat very tightly therein and will not be liable to become detached, and the walls of the groove' 6 diverge and the end of the seal ring seated in the grooveI 6-is tapered to conform to the iiare of. said groove 6 to the endthat when the coupling members I, 2, are separated, the said seal ring will remain attached to the coupling member I. l

The adjacent ends oir the coupling members are provided, one with an external ange 8 whose outer side has a tapered annular face 3 9,

" pressure, the bolt and the other with anexternal ange I0 having external coarse threads II whose overall diameter is greater than that of the ange 8. There is a clamp ring I2 which is open at one side, and at said open side, the ends ofthe ring 5 The clamp ring I2 has an inside annular tav15 pering face I9 conforming in shape to and tting,against the face 9, and also has the inside coarse threads 20 which mesh with the threadsl II In making up the union, ,the parts Iand 2 are assembled as shown, and the clamp ring I2 may be slipped over the coupling member I, the threads 20 being of sufficient inside diameter' to pass over the iiange 8, and the clamp ring may then be turned by hand tocause the threads 20 to intermesh withvthe threads II, the faces 9 and I9 being drawn into abutting relation. It` will be noted that only the face of the threads II facing away from the inner end of the coupling 2 contact with the opposing 'faces of the 30 threads, 20, only thus leaving clearance between the crests of the threads and the bottom of the troughs between the threads. The clamp ring agefof lliquid `under ordinary pressures, but in case the liquidbeing conducted is 'under 'high I5 may be tightened up causing y the clamp ring to contract, and the .contacting faces of the threads and the contacting faces, 9, 40 I9, will thereupon co-act with wedge-likeeffect to draw the coupling members I, 2, lcloser together to form a very tight leak-proof joint.

The clamp ring is formed with impact faces 2 I, 22,'.to receive hammer blows for tiglhtening up 45 the clamp ring further, or to release i It will be noted that a clearance indicated by the numeral 23 has been left between the clamp ring and the couplingmember I, so that in case the coupling members I and 2, when connected into pipe line, are not in exact alignment, they may be drawn into 'alignmentrwithout the coupling member I binding against the clamp ring.

The' drawings and description disclose what is 55 ynow considered to be a preferred form of the invention by way of illustration only, while the broad principle of the invention will be defined by the appended claims.

What we claim isz- 1. A union comprising aligned tubular coupling members whose facing ends have coinciding grooves, a seal ring in said grooves, o-ne of said coupling members having an external tapering face and the other member having coarse external threads of a greater diameter than that of said tapering face, a clamp ring open at one side and having an internal tapering face in con- 4members, one having an external tapering annular face and thepther having external threads of a greater diameter than that of said face, a clamp ring open at one side and having an internal tapering face adapted to ride against said external face, said ring also having intemal threads in mesh with the external threads, the threads of said clamp ring having o-ne side only in contact with the opposing side of the threads of the coupling member and the other side of said threads being spaced ap-art and the apexes of thethreads being spaced from the bottom of the corresponding troughs'between the threads,

lugs on the open end of the ring, a clamp bolthaving a swiveling connection with one lug and athreaded connection with the other lug whereby said clamp vring may be contracted or expanded.

3. A union comprising aligned tubular coupling members, one having an external, tapering annular face, and therother having external threads of a greater diameter Ithanthat of said face, a clamp ring open at one side and having an internaltapering face adapted to ride against said external face, said ring also having 'internal threads in meshwith the external threads, the threads of said clamp Vring having one s ilde only inr contact with the opposing side of the threads, of

the coupling members and the other sides ofsaid threads being spaced apart and the apexes of the threads being spaced from the bottom of the corresponding troughs between the threads, lugs on the openend vof the ring, a clamp bolt having a pressure all the way around on said seal ring.

swiveling connection with one lug and a threaded connection with the other lug whereby said clamp ring may be contracted or expanded, and oppositely located impact faces on said clamp ring.-

4. A union'comprising aligned coupling members having external faces which converge outwardly, a split clamp ring around said members and covering the` joint betweenthem, said clamp ring having inside faces which diverge inwardly in contact with said external faces, the faces of one coupling 4member and the faces of. the ring which contact therewith having a greater diameter than the acorresponding diameter of the other face, a lug on each end of the clamp ring at the open side thereof, a clamp bolt having a\ swivling connection with` one lug and a threaded connection with the other lug whereby the clamp ring may be contracted to draw said coupling members together, or expand them.

5. vA union comprising aligned coupling members having external faces which converge outwardly, a split clamp ring around said members and covering the joint between them, said clamp ring having inside faces which diverge inwardly in contact with said external faces, the faces of one coupling member and the faces Vof the which contact therewith having greater diameter than the corresponding diameter of the other face, a lug on each end of the clamp ring at the open side thereof, a clampbolt having a swiveling connection with one lug and a threaded connection with the other lug whereby the clamp ring may be contracted to draw said coupling memfNv bers together, or to expand them, one of said members having an outside diameter less than the inside diameter of the surrounding portion of tlie clamp ring to provide clearance between them.

6. A union comprising aligned coupling members having external faces which converge outwardly, a split clamp 'ring around said members and covering the joint between them, an annular seal ring between the facing ends of said coupling members provided to seal said joint, said clamp ring having inside faces which diverge inwardly in contact with said external faces, the faces of one coupling member and the faces of the ring which contact therewith having agreater diameter than ,the corresponding diameter of the other face, a lug on each end of the clamp ring at the open side'thereof, a clamp bolt having a swiveling connection with one lug, and a threaded connection with the other lug whereby the clamp ring may be contracted to draw said coupling members together to exert a uniform OWENS c. sNELL. CHARLES E. GIRTEN. 

